Akademik Veri Yönetim Sistemi
European Journal of Science and Technology, sa.25, ss.267-271, 2021 (Hakemli Dergi)
Film forming of the
polystrene (PS) doped Poly Vinyl Alcohol (PVA) particles were studied by photon
transmission (PT) technique. The films were prepared as
a mixture of PS and PVA particles at different compositions ranging from 10 to
100 wt % for the optical measurements at room temperature the film formation
process was monitored by measuring the transmitted light intensity (Itr)
from the samples using PT. The film formation includes two stages: void closure
and interdiffusion stages. Percolation model was employed to interpret the
distribution of PS particles in PVA lattice. Percolation threshold, Rc,
was found to be as 0.4 and the volume fraction of PVA as a power law with
exponent 1.01 which is very close to the predicted value, 1.00, by the
percolation theory.